SB2017081037 - Multiple vulnerabilities in QEMU

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Main Vulnerability Database SB2017081037

SB2017081037 - Multiple vulnerabilities in QEMU

Published: August 10, 2017 Updated: August 8, 2020

Security Bulletin ID SB2017081037
CSH Severity
Medium
Patch available
NO
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2014-0145)

The vulnerability allows a local authenticated user to execute arbitrary code.

Multiple buffer overflows in QEMU before 1.7.2 and 2.x before 2.0.0, allow local users to cause a denial of service (crash) or possibly execute arbitrary code via a large (1) L1 table in the qcow2_snapshot_load_tmp in the QCOW 2 block driver (block/qcow2-snapshot.c) or (2) uncompressed chunk, (3) chunk length, or (4) number of sectors in the DMG block driver (block/dmg.c).


2) NULL pointer dereference (CVE-ID: CVE-2014-0146)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a crafted image which causes an error, related to the initialization of the snapshot_offset and nb_snapshots fields.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References